<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>hello</title>
    </head>
    <body>
        <form action="http://www.sogou.com/abc.html" method="post">
            <input type="text" name="key1" value="">
            <input type="text" name="key2">
            <input type="text" name="key3">
            <input type="submit" value="提交">
        </form>
    </body>
</html>